APA (7th ed.) Citation

Gaarder, J., Baggethun, K., & Lorenzo, A. (2020). Simplemente perfecto. Siruela.

Chicago Style (17th ed.) Citation

Gaarder, Jostein, Kirsti Baggethun, and Asunción Lorenzo. Simplemente Perfecto. Madrid: Siruela, 2020.

MLA (9th ed.) Citation

Gaarder, Jostein, et al. Simplemente Perfecto. Siruela, 2020.

Warning: These citations may not always be 100% accurate.